4XQG
Crystal Structure of the Homospermidine Synthase (HSS) variant E237Q from Blastochloris viridis in Complex with NAD.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | Homospermidine synthase | polymer | 475 | 52593.0 | 2 | UniProt (O32323) Pfam (PF03435) Pfam (PF16653) | Blastochloris viridis | HSS |
| 2 | C, I (A, B) | NICOTINAMIDE-ADENINE-DINUCLEOTIDE | non-polymer | 663.4 | 2 | Chemie (NAD) | Blastochloris viridis | HSS | |
| 3 | D, J, K (A, B) | SULFATE ION | non-polymer | 96.1 | 3 | Chemie (SO4) | |||
| 4 | E, F, L, R (A, B) | 3-PYRIDINIUM-1-YLPROPANE-1-SULFONATE | non-polymer | 201.2 | 4 | Chemie (1PS) | |||
| 5 | G, M (A, B) | AGMATINE | non-polymer | 130.2 | 2 | Chemie (AG2) | |||
| 6 | H, N, O, P, Q (A, B) | ACETATE ION | non-polymer | 59.0 | 5 | Chemie (ACT) | |||
| 7 | S, T (A, B) | water | water | 18.0 | 1146 | Chemie (HOH) |
Sequence modifications
A, B: 3 - 477 (UniProt: O32323)
| PDB | External Database | Details |
|---|---|---|
| Gln 237 | Glu 237 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 105186.0 | |
| Non-Polymers* | Number of molecules | 16 |
| Total formula weight | 2975.6 | |
| All* | Total formula weight | 108161.6 |
